NAME
memcpy – copy bytes in memory
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <string.h>
void *
memcpy(void *dst, const void *src, size_t len);
void *
mempcpy(void *dst, const void *src, size_t len);
DESCRIPTION
The memcpy() and mempcpy() functions copy len bytes from object src to object dst. If src and dst overlap, the results are not defined.
RETURN VALUES
The memcpy() function returns the original value of dst.
The mempcpy() function returns a pointer to the byte after the last written byte.
SEE ALSO
bcopy(3), memccpy(3), memmove(3), strcpy(3), wmemcpy(3), wmempcpy(3)
STANDARDS
The memcpy() function conforms to ISO/IEC 9899:1990 (“ISO C90”).
HISTORY
The memcpy() function first appeared in AT&T System V UNIX and was reimplemented for 4.3BSD-Tahoe. The mempcpy() function first appeared in FreeBSD 13.1.